​Ocean Acidification Is Occurring Because ____

​Ocean acidification is occurring because ____.

A) ​of agricultural runoff into rivers
B) ​the ocean absorb about 25% of the carbon dioxide emitted into the atmosphere by human activities
C) ​water changes pH as it warms
D) ​overfishing is changing the structure of ecosystems,harming the plankton that regulate the pH of ocean water
E) ​acid rain has worsened over the last two decades